/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package unb.wikinarua.geopartitura;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

public class SplashScreen extends Activity {

	// GPS Request Code
	private int GPS_REQUEST = 1234;

	// SplashScreen Delay
	private long DELAY_2 = 2000;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		if (checkGPSState()) {
			// SplashScreen Timer
			splashHandler.sendMessageDelayed(new Message(), DELAY_2);
		} else {
			// GPS Disabled
			createGpsDisabledAlert();
		}
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
		if (requestCode == GPS_REQUEST) {
			splashHandler.sendMessageDelayed(new Message(), DELAY_2);
		}
	}
	
	// GPS State
	private boolean checkGPSState() {
		LocationManager locManager = (LocationManager) getSystemService(LOCATION_SERVICE);
		return locManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
	}

	private void createGpsDisabledAlert() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setMessage("O seu GPS está desativado.\nDeseja ativar?")
				.setCancelable(false)
				.setPositiveButton("Sim",
						new DialogInterface.OnClickListener() {
							public void onClick(DialogInterface dialog, int id) {
								Intent gpsOptionsIntent = new Intent(
										android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
								startActivityForResult(gpsOptionsIntent,
										GPS_REQUEST);
							}
						});
		builder.setNegativeButton("Não",
				new DialogInterface.OnClickListener() {
					public void onClick(DialogInterface dialog, int id) {
						dialog.cancel();
						splashHandler.sendMessageDelayed(new Message(), DELAY_2);
					}
				});
		AlertDialog alert = builder.create();
		alert.show();
	}

	// SplashScreen Timer
	private Handler splashHandler = new Handler() {

		@Override
		public void handleMessage(Message msg) {
			Intent i = new Intent(SplashScreen.this, Menu.class);
			startActivity(i);
			overridePendingTransition(R.anim.fade, R.anim.hold);
			finish();
			super.handleMessage(msg);
		}

	};

}